First, the modernization of the dehydrator driven dehydration machine including secretion machine, centrifuge, etc., using AC asynchronous motor direct drive, low-speed feeding, high-speed dehydration; widely used in paper making, dyeing and finishing, food and pharmaceutical, sugar, chemical industry.
The modern dewatering machine must meet the need for different materials to use different speeds for dewatering, so the speed of the dehydrator must be adjusted to meet the process needs. Most of the past used high and low speed motor, low speed acceleration and deceleration machine as low speed feeding, high speed Using another motor drive, mechanical brake is used for speed reduction, and the complex system has a high failure rate. Because of the large capacity of the high-speed motor and the inertia of the dewatering tank, the starting current is extremely long and lasts longer. The operating efficiency is low, and it is impossible to adjust the speed.
Second, the characteristics of energy-efficient EDS1000 series inverters are also used to drive a single motor drive, low-speed feed high-speed dehydration control; but if the inverter if used VF or voltage space vector control technology itself has a resonant frequency section makes mechanical vibration Low speed torque will cause overload.
The use of energy-efficient EDS1000 series of speed sensorless vector control inverters can make up for the above deficiencies. Its characteristics are as follows:
* Low-speed torque large vector control inverter can dynamically detect motor parameters, reach the rated torque output, can solve the problem of low torque and vibration caused by the traditional inverter.
* Large speed range allows 0 ~ 400 HZ operation, at low speed can reach 150% of rated torque output.
* Direct-coupling drive does not need to use pulley drive, can be directly driven; reduce mechanical vibration, belt tension problems, higher efficiency, lower cost and after-sales service.
Third, easy to EDS1000 series inverter in the dewatering machine application and parameter settings
parameter settings:
Parameter number
Features
Parameter value
F0.02
Run the command channel
1
F2.30
Multiple frequency 1
20.00
F2.31
Multiple frequency 2
50.00
F2.32
Multiple frequency 3
65.00
F2.33
Multiple frequency 4
80.00
F2.34
Multiple frequency 5
100.0
F5.00
Input terminal X1 function selection
1
F5.01
Input terminal X2 function selection
2
F5.02
Input terminal X3 function selection
3
F5.08
FWD/REV operation mode selection
0
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